alpha-sarcin — (= a sarcin) Anti tumour factor (ribotoxin; 17 kD) from Aspergillus giganteus. Is generally cytotoxic and has high specificity as an RNAase, binding to the 28S rRNA. One of a family that includes mitogillin, restrictocin and AspFl … Dictionary of molecular biology

α-sarcin — A fungal toxin that acts on the large subunit of rRNA and inactivates the ribosome … Medical dictionary

Ricin — (pronEng|ˈraɪ sɨn) is a protein toxin that is extracted from the castor bean ( Ricinus communis ).The U.S. Centers for Disease Control (CDC) gives a possible minimum figure of 500 micrograms (about the size of a grain of salt) Fact|date=May 2008… … Wikipedia